KR930017019A - Device for detecting copy protection - Google Patents

Device for detecting copy protection Download PDF

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Publication number
KR930017019A
KR930017019A KR1019920025503A KR920025503A KR930017019A KR 930017019 A KR930017019 A KR 930017019A KR 1019920025503 A KR1019920025503 A KR 1019920025503A KR 920025503 A KR920025503 A KR 920025503A KR 930017019 A KR930017019 A KR 930017019A
Authority
KR
South Korea
Prior art keywords
video signal
copy protection
counting
copy
vertical blanking
Prior art date
Application number
KR1019920025503A
Other languages
Korean (ko)
Other versions
KR100242803B1 (en
Inventor
신고 나카타
Original Assignee
오오가 노리오
소니 가부시끼가이샤
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by 오오가 노리오, 소니 가부시끼가이샤 filed Critical 오오가 노리오
Publication of KR930017019A publication Critical patent/KR930017019A/en
Application granted granted Critical
Publication of KR100242803B1 publication Critical patent/KR100242803B1/en

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Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B27/00—Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
    • G11B27/10—Indexing; Addressing; Timing or synchronising; Measuring tape travel
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/76—Television signal recording
    • H04N5/91—Television signal processing therefor
    • H04N5/913—Television signal processing therefor for scrambling ; for copy protection
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/76—Television signal recording
    • H04N5/91—Television signal processing therefor
    • H04N5/913—Television signal processing therefor for scrambling ; for copy protection
    • H04N2005/91307—Television signal processing therefor for scrambling ; for copy protection by adding a copy protection signal to the video signal
    • H04N2005/91314—Television signal processing therefor for scrambling ; for copy protection by adding a copy protection signal to the video signal the copy protection signal being a pulse signal inserted in blanking intervals of the video signal, e.g. pseudo-AGC pulses, pseudo-sync pulses

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Television Signal Processing For Recording (AREA)

Abstract

본 발명은 목적은, 영화등의 비디오 소프트가 기록된 기록완료 비디오 테이프의 입력비디오신호에 카피가아드가 걸려있는지 아닌지를 정확히 검출하는 복제방지처리의 유무검출장치에 관한 것이다. 본 발명의 구성은, 입력비디오신호의 수직블랭킹 구간내에 복제방지를 위해 삽입된 복수개의 의사동기신호의수를 계수하는 제1의 수단을 설치하고, 입력비디오 신호의 수직블랭킹구간을 제외한 영상부 구간의 동기신호의 수를 계수하는 제2의 수단(5)을 설치하여, 제1의 수단(4)의 계수결과와 제2의 수단(5)의 계수결과로 부터 복제방지처리의 유무판별을 판별수단(6,7)으로 행하도록 구성이다.An object of the present invention is to provide an apparatus for detecting the presence or absence of a copy preventing process for accurately detecting whether or not a copy guard is applied to an input video signal of a recorded video tape on which video software such as a movie is recorded. The configuration of the present invention is provided with a first means for counting the number of plural pseudo-synchronous signals inserted for copy protection in the vertical blanking section of the input video signal, and excluding the vertical blanking section of the input video signal. Second means (5) for counting the number of synchronization signals of the second means (5) is provided to discriminate the presence or absence of copy protection processing from the count result of the first means (4) and the count result of the second means (5). It is a structure to perform by the means 6 and 7.

Description

복제방지처리의 유무검출장치Device for detecting copy protection

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.

제1도는 본 발명에 의한 복제방지처리의 유무검출장치의 일실시예의블록도이다. 제2도는 제1도의 예의 설명을 위한 도면이다. 제3도는 본 발명에 의한 복제방지처리의 유무검출장치의 사용예의 블록도이다.1 is a block diagram of an embodiment of an apparatus for detecting the presence or absence of copy protection according to the present invention. 2 is a diagram for explaining the example of FIG. 3 is a block diagram of an example of use of the apparatus for detecting copying or not according to the present invention.

Claims (1)

비디오 신호의 수직블랭킹구간내에 복제방지를 위해 삽입된 복수개의 의사동기신호의 수를 계수하는 제1의 수단과, 상기 비디오신호의 수직블랭킹구간을 제외한 영상부구간의 동기신호의 수를 계수하는 제2의 수단과, 상기 제1의 수단의 계수결과와 상기 제2의 수단의 계수결과로 부터 복제방지처리의 유무판별을 행하는 판별수단을 포함하여 구성된 것을 특징으로 하는 복제방지처리의 유무검출장치.First means for counting the number of plural pseudo-synchronous signals inserted for copy protection in the vertical blanking section of the video signal, and for counting the number of sync signals for the video sub-section except for the vertical blanking section of the video signal. And the discriminating means for discriminating whether or not the copy preventing process is performed from the count result of the first means and the count result of the second means. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019920025503A 1992-01-16 1992-12-24 Copy guard processing detecting apparatus KR100242803B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP92-025725 1992-01-16
JP04025725A JP3134894B2 (en) 1992-01-16 1992-01-16 Apparatus for detecting the presence or absence of duplication prevention processing

Publications (2)

Publication Number Publication Date
KR930017019A true KR930017019A (en) 1993-08-30
KR100242803B1 KR100242803B1 (en) 2000-03-02

Family

ID=12173780

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019920025503A KR100242803B1 (en) 1992-01-16 1992-12-24 Copy guard processing detecting apparatus

Country Status (3)

Country Link
US (2) US5337157A (en)
JP (1) JP3134894B2 (en)
KR (1) KR100242803B1 (en)

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Also Published As

Publication number Publication date
KR100242803B1 (en) 2000-03-02
US5459583A (en) 1995-10-17
JPH05191772A (en) 1993-07-30
US5337157A (en) 1994-08-09
JP3134894B2 (en) 2001-02-13

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